Tube Holder Adapter for 1/2" Ends Back Catalog number: 800139 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800073 Tube Holder Dual Variable Flow, only Price on request 800262 Single Tube Holder Kit, 7 x 130mm [Draeger Long T Price on request 800165-10 Sorbent tube adapter nipple for Dual manifold High Price on request